This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionPaul Dirac and Richard Feynman at Jabłonna 1962.png
English: Photo taken in Jabłonna, near Warsaw, Poland, during the international scientific conference on General Relativity and Gravitation in July 1962.
Polski: Fotografia zrobiona w Jabłonnie koło Warszawy podczas konferencji naukowej pt. "General Relativity and Gravitation" w lipcu 1962.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
Captions
Paul Dirac and Richard Feynman at Jabłonna, Poland. July 1962.
Paul Dirac i Richard Feynman w Jabłonnie koło Warszawy. Lipiec 1962.